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Our programs produce accurate geologic maps and 3-D geologic frameworks that provide critical data for sustaining and improving the quality of life and economic vitality of the Nation. 

Filter Total Items: 8999

Reconnaissance geologic map of the Silver Reef Mountains Quadrangle, Pinal and Pima counties, Arizona

No abstract available.

Reconnaissance geologic map of Vekol Mountain Quadrangle, Arizona

No abstract available.

Reconnaissance map of potential volcanic hazards from Cotopaxi Volcano, Ecuador

No abstract available.

Reconnaissance map showing relative amounts of soil and bedrock in the Buckhorn Mountain quadrangle, Larimer County, Colorado

No abstract available.

Reconnaissance map showing relative amounts of soil and bedrock in the Drake Quadrangle, Larimer County, Colorado

No abstract available.

Reconnaissance map showing relative amounts of soil and bedrock in the mountainous part of the Boulder Quadrangle, Boulder County, Colorado

No abstract available.

Reconnaissance map showing relative amounts of soil and bedrock in the mountainous part of the Horsetooth Reservoir Quadrangle, Larimer County, Colorado

No abstract available.

Reconnaissance map showing relative amounts of soil and bedrock in the mountainous part of the Kassler Quadrangle, Jefferson and Douglas counties, Colorado

No abstract available. 

Reconnaissance map showing relative amounts of soil and bedrock in the mountainous part of the Lyons Quadrangle, Boulder County, Colorado

No abstract available.

Reconnaissance map showing relative amounts of soil and bedrock in the mountainous part of the Masonville quadrangle, Larimer County, Colorado

No abstract available.

Reconnaissance map showing relative amounts of soil and bedrock in the mountainous part of the Pinewood Lake-Carter Lake Reservoir quadrangles, Boulder and Larimer counties, Colorado

This map shows the relative amounts of soil and hard bedrock within the upper 6 feet (1.8 m) of the land surface.  (See schematic section.)  It provides information useful for broad-scale land-use decisions.  The map is based on reconnaissance field studies and aerial-photograph interpretation.  The depth of soil and weathered rock was measured directly in roadcuts and other excavations and was es

Road-salt storage and road network in Connecticut

No abstract available.